Objects in the image:
category: car
category: person
category: bus
category: car
category: person
category: car
category: person
category: car
category: person
category: car
category: car
category: traffic light
category: car

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: is it a bus?
a: No
q: is it a vehicle?
a: No
q: is it a light?
a: Yes
q: is it traffic light?
a: Yes
q: under the green board?
a: No
q: in the left side of the picture?
a: Yes
q: in the left post?
a: No
q: is it red?
a: No
q: is it very small?
a: No
q: is in the left end of the picture?
a: Yes
q: all three lights?
a: Yes